Acknowledgements This work was supported by the Indian Council of Medical Research, New Delhi, India (ICMR-Centenary Postdoctoral Award). This study was also partially supported with funds from a Fogarty International Center Global Infectious Disease training grant (D43 TW007884). The content of this manuscript is solely the responsibility of the authors and does not necessarily
represent the official views of the Fogarty International Center or the National Institutes of Health. SKP is an ICMR-Centenary Postdoctoral Fellow. The authors are thankful to Cherry find more L. Dykes for editorial correction. The authors would like to thank NIMR scientists, staffs (Molecular Biology Division) and field units for their support and cooperation during the study. Electronic supplementary material Additional file 1: Detail information about study sites. (DOC 70 KB) References 1. Andrade BB, Reis-Filho A, Souza-Neto
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